LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

[tchica]

I need lenovo thinkpad a475 motherboard schematic please

[IROC2022]

Yes

[SMDFlea]

Hello can someone help me. I have a cleaned bin and the t580 still only beeps with black screen. The original file works and give the password prompt and check sum message.

Is this the same one that you posted earlier in this thread S/N R9-OVDHP1

[IROC2022]

Hello can someone help me. I have a cleaned bin and the t580 still only beeps with black screen. The original file works and give the password prompt and check sum message.

[VirVir]

Hello Guys,
I also have a problem with my P53 and it's as follows:
Unsoldered the BIOS Chip, read+read+read...4 times, checked with certutil CMD, everything was fine. Used the autopacher on the bin file, write it on the Chip and again 4 times read and checked with certutil, again everything was fine. Resoldered the Chip on the MB, 15-20 minutes to put the laptop back together 😭 I hate this models... Plugged in and ... nothing. The power button light comes on, stays like that for 2-3 seconds, shuts down and repeat. After the second shutdown, it comes back on but this time blinking and accompanied by a clicky sound. I've tried counting (thinking it's a code for a error of some sort) but I've stopped counting after 60 🤣 It just keep going, as long as the AC or battery are connected. Nothing on the display, not even a sign. Because it's so damn hard to disassemble and put back together this laptop, I'll do it again if someone can look at the files and tell me if I did something wrong. Or maybe can someone much more better than me at this, unlock the original file. Thank you 🙏🏻

P53 (Type 20QN, 20QQ) Laptop (ThinkPad) - Type 20QQ
Serial Number
PF2AL6P7

Machine Type Model
20QQS2Q800

[wheeljack26]

T480
type - 20L6-S0GE00
S/N - PF-19CA8L
i7-8650U with mx150
bios locked, i took 4 bios dumps (bios1.bin) (confirmed via certutil hashfile MD5, they were all same) via unsoldering the W25Q128JVSQ and using the CH341B programmer, then patched it (bios1_PATCHED.bin), wrote to to IC, read the IC and confirmed with hash that the file is correctly written as patch and it was, soldered the IC and went to boot the laptop and it charges both the batteries but no display, no light on power button, the speakers aren't there because they were missing when i got this from the ewaste bin, i still connected an external speaker via 3.5mm jack but no idea if it will still be picked up while in bios, the power button light flashes 3 times when i plug it in which as per lenovo is just it signaling that it was plugged in? then i flashed the original bios and still same issue, no display (before any of the steps it was working fine), then read this sub an saw the ME Region thing(mepatch.bin), did that, same issue, Any help would be massively appreciated, I'll attach all 3 files for review, please let me know and after every flash i read the IC and confirmed that the flashed file and the read file after flash had the same hash.

[Rupendra]

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

Max Power 3, thank you very much
it worked on a lenovo T440s
worked perfect tested

Could you please explain, how you did it? I have a t440s and stuck on supervisor password. Can't do anything.

[Bacca]

Anyone have luck with the ThinkPad X13s?

MODEL: 21BYS0Y00
BIOS: N3HET91W (1.63)

[Hugo7338]

Hi everyone,

I just managed to unlock the supervisor password on my T480s.

PC model: 20L7001NMZ
Motherboard: NM-B471
BIOS chip: WINBOND 25Q128JVSQ

I used a CH341A with an 8-pin clip directly on the chip (soldering isn't my thing).
I used NeoProgrammer v2.2.0.10 because I couldn't find my chip in either CH341A Programmer or ASProgrammer.

Using the 8-pin clip that comes with the CH341A was a real pain — I think there were contact issues, and I had to reposition the clip several times before NeoProgrammer could detect the chip. It took quite a while each time I wanted to connect it, but eventually, it worked.

It wasn't smooth sailing; I ran into a few problems. Honestly, I don't fully understand what I did, but in the end, it worked! Here's a step-by-step of what I did:

1. Backed up the original BIOS chip to a .bin file
2. Ran the autopatcher script, which created a "_PATCHED" .bin file
3. Erased the chip and wrote the patched file
4. Turned on the computer

At this point, the laptop started beeping weirdly (beeps with different noise levels 5 or 6 times) with a black screen, then shut down.
Tried this a few times — same result every time.
5. Flashed back the original BIOS file — the laptop was back to its initial state. Not bricked, thankfully.


A bit desperate, I tried something else, not really knowing what I was doing:

1. Downloaded the BIOS file shared by Stefan Steff on this thread (4th post) :
   https://www.badcaps.net/forum/troubl...20l8-bios-dump
2. Booted the PC with that BIOS file — it struggled a bit, rebooted once or twice, then asked for the Supervisor Password
3. Exported the BIOS from the chip again and compared it to the original Stefan Steff file — it had changed
4. Ran the autopatcher on this new BIOS file, then flashed the patched version to the chip
5. Followed the patch usage procedure:
     - Boot the machine
     - Press ENTER/F1/etc. to enter BIOS
     - Type any character for the Supervisor Password
     - Press Enter when the Hardware ID shows
     - Press Space twice when asked
     - Power off
6. Finally, I reflashed Stefan Steff's BIOS file — and voilà: no more Supervisor Password, and the PC works perfectly.

Don't ask me why I followed this exact process — I'm not sure myself — but it worked for me.

Hope it helps someone!

[b4rdock]

can unlock thinkpad p14s 2 gen ?
this have a mec1503

[b4rdock]

thinkpad P14s gen 2 can unlock ?
this have a mec1503

[IROC2022]

Yes when I put back original file the laptop starts and goes to the password prompt. I entered any password but no luck. Could be the patch file is not working properly.

[volinakis]

Tried file but still getting the beeps with black screen. Tried twice no luck.

if you put back original bios laptop starts?

[IROC2022]

Tried file but still getting the beeps with black screen. Tried twice no luck.

[volinakis]

Looking for me region repository file
11.8.93.4323

try this file and follow steps from autopatcher

[IROC2022]

Looking for me region repository file
11.8.93.4323

[Gatewave]

Hey guys, could I please check if the autopatcher can be used on T14s Gen2 thinkpad to remove the BIOS password? Or LPC bypass method should be tried on these newer thinkpads?
S/N: PF3N9BB8 Type:20WN-S1GC0U
Thank you

[Marshall Jukov]

Thank you so mush. Been able to remove password on second hand A475.
Did that on Linux Mint though, as the script refused to do anything on Windows even though Python 32 and 64 was installed (tried on two laptops one with fresh install)

[IROC2022]

Was able to write file however screen stays black.Only heard a few beeps and nothing else screen not coming on.

[volinakis]

Type 20LA-S7F700
S/N R9-OVDHP1 19/06
Thanks for your help.

there is no letter "O" in serial no. just 0 (zero)
Try this file.